Centrifugal governor.



PATENTED JAN. 22, 190?. 0. N. WALSH & w. N. RUMBLY.

GENTRIFUGAL GO VER'NOR. APPLIQATION FILED APR. 7, 190a.

Inventors w m Attorney ,1 r j gf Nrn srA rpS PATENT orrron,

CHARLES N. WALSH AND WILLIAM N. RUMELY, OF LAPORTE, INDIANA.

CENTRIFUGAL GOVERNOR.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed April '7, 1906. Serial No. 310,405.

To all whom it may concern.-

Be it known that we, CHARLES N. WALSH and WILLIAM N. RUMELY, citizens of the United States, and residents of Laporte, Laporte county, Indiana, have invented certain new and useful 1m rovements in Centrifugal Governors, of whic h the following is a speci fication.

This invention will be readily understood from the following description, taken in connection with the accompanying drawings, in which Figure 1 is an elevation, part in vertical section, of governor parts exemplifying our invention; Fig. 2, an elevation, part in vertical section, of one of the governor-balls and its immediate connections; Fig. 3, ahorizontal section of a portion of the whirl, and Fig. 4 an elevation of the juncture of the governor-rod and speeder-screw.

In the drawings, 1 indicates the valvebody; 2, the housing surmounting the same; 3, a band at the base of the housing encircling the top of the valve-body and capable of turning thereon; 4, a set-screw through the band engaging in a groove in the to of the valve-body and serving to hold the ousing in place on the Valve-body; 5, the valvestem projecting up1 into the housing from the valve-body; 6, a ollow stud rojecting rigidly upward from the top of tile housing; 7, a disk-like whirl mounted for rotation on the stud above the housing; 8, the usual gearing by which motion is transmitted to the whirl;

9, a collar secured to the stud above the whirl and serving to prevent thewhirl from rising, this collar being secured to the stud by means of a set-screw; 10, the governor-head .in the form of a disk mounted for rotation and reciprocation on the up er end of the stud; 11, the governor-ba ls; 12, radial notches through the whirl, one notch for each governor-ball; 13, a notch in the whirl in the tangential line of each notch 12, a partition standing between the notches 12 and 13; 14, a horizontal pivot crossing each notch 12, its head presenting itself in notch 13; 15, an arm projecting rigidly downwardlyfrom each governor-ball, its lower end entering a notch 12 in the whirl and engaging the ivot 14 therein; 16, a band encircling and closely fitting the whirl and closing the exterior of the notches therein; 17, a pivot horizontally crossing each governor-ball; 18, a gap in the upper portion of each governor-ball. extending from each end of its pivot 17 around the up er portion of the ball and extending angu arly over a portion of the upper part of the ball, the floor of the ga representing a spherical convexity of sma ler radius than that of the ball; 19, a yoke disposed in the gap of the governor-ball and having its ends coupled to the pivot therein, the exterior sur ace of the yoke corresponding substantially with the spherical exterior of the ball and the width of the yoke being such as to permit it to have a proper amount of angular play in the gap in the ball; 20, an arm proecting rigidly upward from each yoke; 21, a pivot in the governor-head engaged by the upper end of each of the arms 20, the provision of notches, pivots, and band for the governor-head being substantially the same as has been described in connection with the whirl; 22 a hollow screw surrounding thestud and inclosing collar 9, this screw be ing threaded downwardly into the whirl, the upper end of the screw being cupped; 23, ports through the wall of screw 22 to permit access to the set-screw of collar 9; 24, a helical spring encircling the stud between the whirland the governor-head, this spring being compressed between the governor-head and theadjustin screw 22; 25, a cap carried by the whirl above the upper end of the stud; 26, the governor-rod fitted to slide vertically through the stud, its lower end being near theupper end of the valve-stem and being cut off at an angle, while its upper end projects above the top of the stud; 27, a button on the upper end of the governor-rod engaging under cap 25; 28, a coupling screwed removably to the upper end of the valve-stem and having in its top a socket in which the foot of the governor-rod has sliding engagement; 29, a feather engagement between the coupling and the foot of the governor-rod to permit the governor-rod to slide in the coupling without capacity for turning therein; 30, a screw threaded diagonally upward into the coupling, its axis intersecting that of the governor-rod and its upper end coming under the foot of the governor-rod, the foot of the governor-rod and the top of the Speeder-screw 30 having a V-and-notch. en gagement, as seen in Fig. 4; 31, a handle on the low er end of screw 30 by means of which the screw may be adjusted; 32 the usual governor-ro d lifter by means of which a weight or spring presses the governor-rod upward and keeps its top button in contact with the cap, this lifter in the present case having forked engagement with the coupling; 33, a shank telescoping into the lower end of the Speeder-screw 30 and splined therein; 34, a flexible shaft connected with shank 33; 35, a bearing carried by the band of the housing, and 36 a shaft journaled in the bearing 35 and connected with the flexible shaft.

In the absence of the flexible shaft and its shank the Speeder-screw 30 may be turned direct by means of its handle 31, its effect being when screwed upward to increase the distance between the button 27 and the governor-valve and when screwed downward to lessen that distance, the result being that provision is made for adjusting the speed of the governor. The interlocking juncture between the upper end of the speeder-screw and the foot of the governor-rod, as illustrated in Fig. 4, makes the speeder-screw self-locking at each quarter-turn. By adding the extension-shaft 36, connected with the speederscrew, provision is made by which the speeder-screw may be operated from a dis tance. By disconnecting the valve-stem from the coupling and by properly releasing set-screw 4 the housing may be readily removed, carrying with it the general motionwork of the governor.

The governor may be taken apart or dis mantled with peculiar facility. By properly releasing set-screw 4, the flexible Speeder extension being absent or disconnected, the entire upper portion of the governor may be removed from the valve-body, leaving the valve-stem and coupling in place. Again, by releasing the set-screw of collar 9 the entire rotating top portion of the governor may be removed, upwardly removed from the housing and stud and without necessarily disturbing the adjustment of any part. This facility for disassembling the parts is a great convenience in original construction, in packng and shipping, and in inspection, maintenance, &c.

The arms formed with and pivoted to the balls are made as short as practicable, and the major portion of these arms join with the balls in forming the centrifugal elements of the governor. By gapping the balls and locating the yokes of the upper arms within these gaps the main portion of the mass represented by these arms is brought closer to the center of the balls than would otherwise be possible, the result being that the center of gravity of the centrifugal elements or the main effective portion of it is brought into practical coincidence with the center of gravity of the mass of the balls.

We claim 1. A governor comprising a governor-ball with an arm to engage a pivot and having its periphery provided with a gap, a yoke arranged for swinging motion in said gap and provided with an arm for a pivot and having an exterior surface corresponding substantially with the spherical exterior of the ball, and a pivot uniting the extremities of the yoke to the ball, combined substantially as set forth.

2. A governor comprising a rotary disk provided with radial notches and with notches to the side thereof, a pivot crossing each radial notch and presenting an end in the notch to the side thereof and engaging the partition between the two notches, and a band encircling the disk and forming outer walls for the notches, combined substantially as set forth.

3. A governor comprising a stud, a whirl and governor-head mounted thereon, a collar on the stud above the whirl, a hollow screw inclosing the collar and threaded into the whirl, and a helical spring compressed between the governor-head and hollow screw and adjustable by means of said screw, combined substantially as set forth.

4. A governor comprising a valve-stem, a coupling secured thereto and provided with a socket in upward prolongation of the axis of the valve-stem, a governor-rod having its foot fitted to slide in said socket, and a speeder-screw threaded diagonally upward into said coupling and having its upper end engaging under the foot of the governor-rod, combined substantially as set forth.

5. A governor comprising a valve-stem, a coupling secured thereto and provided with a socket in upward prolongation of the axis of the valve-stem, a governor-rod having its foot fitted to slide in said socket, and a speeder-screw threaded diagonally upward into said coupling and having its upper end engaging under the foot of the governor-rod, the foot of the valve-rod being beveled at right angles to the axis of the speederscrew, combined substantially as set forth.

6. A governor comprising a valve-stem, a coupling secured thereto and provided with a socket in upward prolongation of the axis of the valve-stem, a governor-rod having its foot fitted to slide in said socket, and a Speeder-screw threaded diagonally upward into said coupling and having its upper end engaging under the foot of the governor-rod, the foot of the governor-rod being beveled at right angles to the axis of the speeder-screw, and the engaging ends of the governor-rod and sp'eeder-screw having concave'and convex interengagements, combined substantially as set forth.

7 A governor comprising a valve-stem, a coupling secured thereto and provided with a socket in upward prolongation of the axis of the valve-stem, a governor-rod having its foot fitted to slide in said socket, and a speeder-screw threaded diagonally upward into said coupling and having its upper end engaging under the foot of the governor-rod, and an adjusting-shaft flexibly connected with the Speeder-screw and projecting out- 841,832 I as wardly from the general governor structure, I ling seperebly secured to the valve-stem and I0 combined substantially as set forth. connecting it with the governor-rod, and

8. A governor comprising a valve-body, e speedenzidjusting mechanism carried by the valve-stem projecting upwardly therefrom, a coupling.

housing having separable and swiveling con- CHARLES N. WALSH. nection with the top of the valve-body, ro- WILLIAM N. RUMELY. tary governor parts carried by the housing, a Witnesses: governor-rod extending downward from the AUGUST B. YERM,

rotary parts toward the valveste1n, a coup- H. D. BLIOK. 

